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1312817117
Previously, recipes that began spitting binary contents before loading block 282 would end up with VARIABLE code in their binary, thus breaking them. We fix this by making this loading process 2-part.
43 lines
1.1 KiB
Forth
43 lines
1.1 KiB
Forth
0xff00 CONSTANT RS_ADDR 0xfffa CONSTANT PS_ADDR
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RS_ADDR 0x80 - CONSTANT RAMSTART
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212 LOAD ( z80 assembler )
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262 LOAD ( xcomp )
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282 LOAD ( boot.z80.decl )
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270 LOAD ( xcomp overrides )
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283 335 LOADR ( boot.z80 )
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353 LOAD ( xcomp core low )
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CODE (emit)
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A 1 LDrn, 1 OUTnA, HL POPqq, A L LDrr, 0 OUTnA,
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;CODE
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CODE (key)
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BEGIN, 1 INAn, A INCr, JRZ, AGAIN,
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A DECr, PUSHA,
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;CODE
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: _sel ( sec )
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( 32 sectors per track, 512 tracks per disk )
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32 /MOD ( addr sec trk )
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0x0a ( seltrk ) 1 PC! 0 PC! 0 0 PC! ( addr sec )
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0x0b ( selsec ) 1 PC! 0 PC! ( addr ) ;
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: _ ( addr )
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( get 512 bytes )
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0x86 ( readsec ) 1 PC!
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512 0 DO 0 PC@ SWAP C!+ LOOP DROP
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;
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: FD@ 2 * DUP _sel BLK( _ 1+ _sel BLK( 512 + _ ;
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: _ ( addr )
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( write 512 bytes )
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0x0c ( writesec ) 1 PC!
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512 0 DO C@+ 0 PC! LOOP DROP
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;
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: FD! 2 * DUP _sel BLK( _ 1+ _sel BLK( 512 + _ ;
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: FD$ ( select disk 0 )
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0x09 ( seldisk ) 1 PC! 0 0 PC! ( sel disk 0 )
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;
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380 LOAD ( xcomp core high )
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(entry) _
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( Update LATEST )
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PC ORG @ 8 + !
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," CURRENT @ HERE ! BLK$ FD$ ' FD@ BLK@* ! ' FD! BLK!* ! " EOT,
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ORG @ 256 /MOD 2 PC! 2 PC!
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H@ 256 /MOD 2 PC! 2 PC!
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